Infrared colors as type indicators for spiral galaxies

Galaxies chosen from the Second Reference Catalogue of Bright Galaxies are used to explore the possibility of distinguishing between normal spirals and barred spirals based on the IR color-color diagram. The results are shown to be unexpectedly sensitive to both the selection criteria and the choice...

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Bibliographic Details
Published in:The Astronomical journal 1989-05, Vol.97, p.1337-1340
Main Authors: Baggett, S. M., Anderson, K. S. J.
Format: Article
Language:English
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Summary:Galaxies chosen from the Second Reference Catalogue of Bright Galaxies are used to explore the possibility of distinguishing between normal spirals and barred spirals based on the IR color-color diagram. The results are shown to be unexpectedly sensitive to both the selection criteria and the choice of catalog. Although the barred and unbarred color distributions are found to differ, it is concluded that a given galaxy or group of galaxies cannot be assigned a definite type based on these infrared colors alone. (R.R.)
ISSN:0004-6256
DOI:10.1086/115076